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Finding the Third Proportional to 8,878 and 9,706

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Solution

The third proportional to 8,878 and 9,706 is: 10,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878 : 9,706 = 9,706 : x
  2. Step 2: Convert to fraction form
    8,878/9,706 = 9,706/x
  3. Step 3: Cross multiply
    8,878x = 9,706 × 9,706
  4. Step 4: Simplify right side
    8,878x = 94,206,436
  5. Step 5: Solve for x
    x = 94,206,436/8,878
  6. Step 6: Final answer
    x = 10,611.22

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.